srinath wrote on 04/21/20 at 13:56:04:A lot of people think that - except if you have 35 psi compression, you're likely under 1/2 (negative) that in suction. Not enough to suck a lungful of air fuel into the chamber. That's why the bike doesn't run with low compression.
This is interesting. I did also spray some starting fluid into the intake and got a little muffled puff.
srinath wrote on 04/21/20 at 13:56:04:Now make sure you're not misdiagnosing this clean to an unnecessary engine rebuild - The valve clearance and timing is your next step to check and adjust. Relatively easy to do. Do that and you'd know if the timing of the valves opening closing is right
Srinath.
Yes this was my next step. I can see the intake valve opening and closing so that’s something anyway.
Could the valves be out of adjustment enough to cause it not to be able to suck fuel...I’ve never run across that in my 50+ years of working on engines. The way it’s acting it seems like valves are out of time. I will check the valve clearances first and see where it leads me